Figure 18. Top: Perspective view of sidescan-sonar imagery draped over bathymetry looking towards Myrtle Beach. The degree of sorting of surficial sediment samples is indicated by color-coded spheres. Vertical exaggeration is 200 x. Bottom: Shore-parallel bathymetric profile along a characteristic low-relief ridge showing variations in backscatter and sorting in relation to ridge morphology. Sorting improves moving from the NE side and trough to the crest and SW side.